Can't find the trailer for the 2nd film but 2 and 3 were filmed at the exact same time and have even more in common than Sleepaway Camp 2 and 3, so this is exactly the same save for slightly different music and some stuff at a college. Some really bad stuff at a college:

As for this what-Troma-should-be business, I like the original Nuke 'Em a lot more than the first Toxic Avenger. Haven't seen the (TA) sequels in some time, but- half the time, I'll settle for a Chillers. Which wasn't great but was certainly worth sitting through when it got going (the vampire segment was very interesting). Troma were usually pretty smart about what films to pick up for distribution. More often than not, they were wonderfully bad, quirky, and entertaining.